Scientists from Nagoya University in Japan have developed an innovative cooling device—an ultra-thin loop heat pipe—that significantly improves heat control for electronic components in smartphones and tablets. This breakthrough successfully manages heat levels generated during intensive smartphone usage, potentially enabling the development of even thinner mobile devices capable of running demanding applications without overheating or impeding performance.

The research, published in the journal Applied Thermal Engineering, addresses one of the most critical challenges in mobile device engineering: effectively cooling increasingly powerful components within the confined space of slim mobile devices. The team's solution provides more efficient heat management without increasing device thickness, which could allow manufacturers to push performance boundaries while maintaining or even reducing size. This may lead to next-generation smartphones and tablets that deliver sustained high performance without compromising on design or user experience.

While elicited imitation (EI) tests can effectively measure language proficiency by having learners repeat complex sentences, they require time-consuming human scoring. Now, researchers from Japan have developed a fully automated system by combining EI for speech recognition with a computational scoring metric. Their study showed that the automated system produced nearly identical overall scores to human raters, suggesting that this approach could enable efficient, large-scale language assessment and potentially transform educational practices.

Dr. Ho Seong Jang and colleagues at the Extreme Materials Research Center at the Korea Institute of Science and Technology (KIST) have developed an upconversion nanoparticle technology that introduces a core@multi-shell nanostructure, a multilayer structure in which multiple layers of shells surround a central core particle, and enables high color purity RGB light emission from a single nanoparticle by adjusting the infrared wavelength.

The work provides a comparative evaluation of the characteristics of various large DNA fragment assembly strategies used in different host cells, focusing on their limitations, time requirements, and the respective advantages and disadvantages of each approach. 

Earth’s rocky layers are mysteriously low in nitrogen compared with carbon and argon. A scientific team explored our planet’s molten youth using advanced quantum mechanical simulations, revealing nitrogen’s secret: under extreme pressure, it chose to hide in the iron core 100 times more than the mantle. This solved why Earth’s volatile ratios involving nitrogen look odd. The findings suggest the necessary ingredients for developing a habitable world may have been settled in the early Earth.